Yes

You couldn't control yourself. You could still hear the shower running and your horny mind wanted something to look at if it were to cum.

Just a quick glance, you thought to yourself as you opened parts of the curtain to look at your sisters naked body. As you opened the curtain you hear the shower stopping, just as your sister screamed "Hey! Are you done yet or what? I need to get out!"

Just as you opened parts of the curtain your sister turned around, her hot young naked body staring back at your hard as ever cock. Her eyes looked back at it, fixated on your cock with a shocked expression and her mouth open. She didn't scream, she didn't say anything.

As a queue your cock started blasting cum and with the **** of a thousand cocks it started hitting your sister. To be fair it wasn't strange that it hit, since your long hard cock extended the radius of the cum blasting. As a reaction you grabbed your dick with both of your hands and started aiming it further up, hitting her in the face and spraying all of her body with a cum shower. Minutes went by and Sara was on her knees at this point, embracing the one man bukkake. Her mouth was open and the parts of her eyes still visible behind the cum cover was lit up by excitement. Her mouth was slowly sucking your cum from the head of your penis at this point, stopping at times to swallow the huge amounts of cum and take it all over her body instead.

You realized your hard cock wouldn't stop until you impregnated someone, the blessing and the curse.